Dongji Island Introduction
Did you know that there is a marine national park in Penghu? The "South Penghu Marine National Park" includes the four islands of Dongji, Xiji, Dongyuping, and Xiyuping, along with the surrounding islets and seas. Due to its sparse population, it has retained its original appearance and is an important location for eco-tourism. The easternmost island, Dongji, is the largest among the South Penghu Islands and is also the closest to Taiwan's main island within the Penghu archipelago. It used to serve as a transit station for maritime trade between Taiwan and Penghu. The nearby waters are known for several spiral-shaped undercurrents, which frequently cause vessels to run aground and sink, thus earning the nickname "Black Water Ditch." To safeguard shipping, two lighthouses were constructed during the Japanese occupation. The northern Dongji Lighthouse is the highest point on the island, with its striking black-and-white tower being highly visible. Additionally, remnants of military barracks known locally as "Bingcuo," which were used by Japanese forces, can be seen at the northeastern corner of the island. From the visitor center, heading west to Bagua Mountain and climbing to a high point gives a panoramic view of Dongji Harbor, the Dongji Lighthouse, and the surrounding sea. The rock formation of Bagua Mountain is made up of slender basalt, and to the left, there is a round rock resembling an eye, known as the "Eye of Dongji." The coast surrounding Dongji Island is almost entirely composed of steep columns of basalt sea cliffs, and there is a massive wave-cut platform at the northeastern corner known by locals as "Daping," where a large number of intertidal organisms can be found during low tide. Due to its rich basalt landscape, it, along with Xiji, Toujin, and Tiezhanyu, is collectively designated as the "South Penghu Basalt Natural Reserve."

